6181361 has 2 divisors, whose sum is σ = 6181362. Its totient is φ = 6181360.

The previous prime is 6181349. The next prime is 6181363. The reversal of 6181361 is 1631816.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5664400 + 516961 = 2380^2 + 719^2 .

It is a cyclic number.

It is not a de Polignac number, because 6181361 - 2⁶ = 6181297 is a prime.

Together with 6181363, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6181361.

It is not a weakly prime, because it can be changed into another prime (6181363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3090680 + 3090681.

It is an arithmetic number, because the mean of its divisors is an integer number (3090681).

Almost surely, 2^6181361 is an apocalyptic number.

It is an amenable number.

6181361 is a deficient number, since it is larger than the sum of its proper divisors (1).

6181361 is an equidigital number, since it uses as much as digits as its factorization.

6181361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 26.

The square root of 6181361 is about 2486.2343011068. The cubic root of 6181361 is about 183.5247759610.

The spelling of 6181361 in words is "six million, one hundred eighty-one thousand, three hundred sixty-one".